Logical Vectors:

The relational operators can also be used with the vectors and matrices. For illustration, let's say that there is a vector, and we want to compare each element in the vector to 5 to determine whether it is greater than 5 or not. The outcome would be a vector (with similar length as the original) with logical true or false values. Suppose a variable vec which is as shown here.

>> vec = [5 9 3 4 6 11];

In MATLAB, this can be automatically accomplished by simply using the relational operator >.

>> isg = vec > 5

isg =

0  1  0  0  1  1

Note that this generates a vector consisting of all the logical true or false values. Though this is a vector of ones and zeros, and numerical operations can be completed on the vector isg, its type is logical instead of double.

Posted Date: 10/19/2012 5:49:53 AM | Location : United States

Ask an Expert

Related Discussions:- Logical vectors, Assignment Help, Ask Question on Logical vectors, Get Answer, Expert's Help, Logical vectors Discussions

Write discussion on Logical vectors
Your posts are moderated

Write your message here..

Related Questions

Concatenation, Concatenation: The String concatenation means to join t... Concatenation: The String concatenation means to join the strings altogether. Of course, as strings are merely vectors of the characters, the technique of concatenating vector

User-defined functions - matlab, User-defined functions: Therefore, al... User-defined functions: Therefore, although many functions compute and return values, some do not. A few functions rather merely accomplish a task. Regardless of what type of

Illustration of advanced file input and output, Illustration of Advanced fi... Illustration of Advanced file input and output: For illustration, to refer to the third number in the first element of the cell array: >> subjdata{1}(3) ans =

Find minimum and maximum for each row, Find Minimum and Maximum for each ro... Find Minimum and Maximum for each row To find the maximum (or minimum) for each row, the dimension of 2 (that is how a MATLAB refers to rows) can be identified as the third arg

Creating customized strings, Creating Customized strings: There are ma... Creating Customized strings: There are many built-in functions which create customized strings, including blanks, char, and sprintf. We know that the char function can be u

Creating string variables, Creating string Variables: The string consi... Creating string Variables: The string consists of a few numbers of characters (including, possibly, none). These are the illustrations of the strings: '' 'x' 'ca

Strings as matrix, Strings as matrix: The matrix can be generated, tha... Strings as matrix: The matrix can be generated, that consists of strings in each row. Therefore, essentially it is created as a column vector of strings, but the final result

Illustration of labels and prompts, Illustration of Labels and prompts: ... Illustration of Labels and prompts: The program below prompts the user for endpoints (x1, y1) and (x2, y2) of a line segment, and computes the midpoint of the line segment, th

Use of logical vector, Use of logical vector: Determine how many eleme... Use of logical vector: Determine how many elements in the vector vec were greater than 5, the sum function can be used on the resulting vector isg: >> sum(isg) ans =

Illustrations of variable number of output arguments, Illustrations of Vari... Illustrations of Variable number of output arguments: In the illustrations shown here, the user should actually know the type of the argument in order to establish how many va